Charles Schwab Market Data API — Options

naftiko: 1.0.0-alpha2
info:
  label: Charles Schwab Market Data API — Options
  description: 'Charles Schwab Market Data API — Options. 2 operations. Lead operation: Get option chain for a symbol. Self-contained
    Naftiko capability covering one Charles Schwab business surface.'
  tags:
  - Charles Schwab
  - Options
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    CHARLES_SCHWAB_API_KEY: CHARLES_SCHWAB_API_KEY
capability:
  consumes:
  - type: http
    namespace: market-data-options
    baseUri: https://api.schwabapi.com/marketdata/v1
    description: Charles Schwab Market Data API — Options business capability. Self-contained, no shared references.
    resources:
    - name: chains
      path: /chains
      operations:
      - name: getoptionchains
        method: GET
        description: Get option chain for a symbol
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: symbol
          in: query
          type: string
          required: true
        - name: contractType
          in: query
          type: string
        - name: strikeCount
          in: query
          type: integer
        - name: includeQuotes
          in: query
          type: boolean
    - name: expirationchain
      path: /expirationchain
      operations:
      - name: getoptionexpirationchain
        method: GET
        description: Get option expiration chain for a symbol
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: symbol
          in: query
          type: string
          required: true
    authentication:
      type: bearer
      token: '{{env.CHARLES_SCHWAB_API_KEY}}'
  exposes:
  - type: rest
    namespace: market-data-options-rest
    port: 8080
    description: REST adapter for Charles Schwab Market Data API — Options. One Spectral-compliant resource per consumed operation,
      prefixed with /v1.
    resources:
    - path: /v1/chains
      name: chains
      description: REST surface for chains.
      operations:
      - method: GET
        name: getoptionchains
        description: Get option chain for a symbol
        call: market-data-options.getoptionchains
        with:
          symbol: rest.symbol
          contractType: rest.contractType
          strikeCount: rest.strikeCount
          includeQuotes: rest.includeQuotes
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/expirationchain
      name: expirationchain
      description: REST surface for expirationchain.
      operations:
      - method: GET
        name: getoptionexpirationchain
        description: Get option expiration chain for a symbol
        call: market-data-options.getoptionexpirationchain
        with:
          symbol: rest.symbol
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: market-data-options-mcp
    port: 9090
    transport: http
    description: MCP adapter for Charles Schwab Market Data API — Options. One tool per consumed operation, routed inline
      through this capability's consumes block.
    tools:
    - name: get-option-chain-symbol
      description: Get option chain for a symbol
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: market-data-options.getoptionchains
      with:
        symbol: tools.symbol
        contractType: tools.contractType
        strikeCount: tools.strikeCount
        includeQuotes: tools.includeQuotes
      outputParameters:
      - type: object
        mapping: $.
    - name: get-option-expiration-chain-symbol
      description: Get option expiration chain for a symbol
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: market-data-options.getoptionexpirationchain
      with:
        symbol: tools.symbol
      outputParameters:
      - type: object
        mapping: $.